Buggy code:
public class QueryCacheStoreQuery implements StoreQuery { private final StoreQuery _query ; private final QueryCache _cache ; private StoreContext _sctx ; private MetaDataRepository _repos ; public QueryCacheStoreQuery ( StoreQuery query , QueryCache cache ) { } public QueryCache getCache ( ) { } public StoreQuery getDelegate ( ) { } private List < Object > checkCache ( QueryKey qk ) { } private ResultObjectProvider wrapResult ( ResultObjectProvider rop , QueryKey key ) { } private static Object copyProjection ( Object obj , StoreContext ctx ) { } private static Object fromObjectId ( Object oid , StoreContext sctx ) { } public Object writeReplace ( ) throws ObjectStreamException { } public QueryContext getContext ( ) { } public void setContext ( QueryContext qctx ) { } public boolean setQuery ( Object query ) { } public FilterListener getFilterListener ( String tag ) { } public AggregateListener getAggregateListener ( String tag ) { } public Object newCompilationKey ( ) { } public Object newCompilation ( ) { } public Object getCompilation ( ) { } public void populateFromCompilation ( Object comp ) { } public void invalidateCompilation ( ) { } public boolean supportsDataStoreExecution ( ) { } public boolean supportsInMemoryExecution ( ) { } public Executor newInMemoryExecutor ( ClassMetaData meta , boolean subs ) { } public Executor newDataStoreExecutor ( ClassMetaData meta , boolean subs ) { } public boolean supportsAbstractExecutors ( ) { } public boolean requiresCandidateType ( ) { } public boolean requiresParameterDeclarations ( ) { } public boolean supportsParameterDeclarations ( ) { } public Object evaluate ( Object value , Object ob , Object [ ] params , OpenJPAStateManager sm ) { } private static class QueryCacheExecutor implements Executor { private final Executor _ex ; private final Class < ? > _candidate ; private final boolean _subs ; private final FetchConfiguration _fc ; public QueryCacheExecutor ( Executor ex , ClassMetaData meta , boolean subs , FetchConfiguration fc ) { } public ResultObjectProvider executeQuery ( StoreQuery q , Object [ ] params , Range range ) { } public QueryExpressions [ ] getQueryExpressions ( ) { } private void clearAccessPath ( StoreQuery q ) { if ( q == null ) return ; ClassMetaData [ ] cmd = getAccessPathMetaDatas ( q ) ; if ( ( cmd == null ) || ( ( cmd . length ) == 0 ) ) return ; List < Class < ? > > classes = new ArrayList < Class < ? > > ( cmd . length ) ; for ( int i = 0 ; i < ( cmd . length ) ; i ++ ) classes . add ( cmd [ i ] . getDescribedType ( ) ) ; QueryCacheStoreQuery cq = ( ( QueryCacheStoreQuery ) ( q ) ) ; cq . getCache ( ) . onTypesChanged ( new TypesChangedEvent ( q . getContext ( ) , classes ) ) ; for ( int i = 0 ; i < ( cmd . length ) ; i ++ ) { <START_BUG> if ( ( cmd [ i ] . getDataCache ( ) ) != null ) <END_BUG> cmd [ i ] . getDataCache ( ) . removeAll ( cmd [ i ] . getDescribedType ( ) , true ) ; } } public Number executeDelete ( StoreQuery q , Object [ ] params ) { } public Number executeUpdate ( StoreQuery q , Object [ ] params ) { } public String [ ] getDataStoreActions ( StoreQuery q , Object [ ] params , Range range ) { } public void validate ( StoreQuery q ) { } public void getRange ( StoreQuery q , Object [ ] params , Range range ) { } public Object getOrderingValue ( StoreQuery q , Object [ ] params , Object resultObject , int orderIndex ) { } public boolean [ ] getAscending ( StoreQuery q ) { } public boolean isPacking ( StoreQuery q ) { } public String getAlias ( StoreQuery q ) { } public Class < ? > getResultClass ( StoreQuery q ) { } public ResultShape < ? > getResultShape ( StoreQuery q ) { } public String [ ] getProjectionAliases ( StoreQuery q ) { } public Class < ? > [ ] getProjectionTypes ( StoreQuery q ) { } public ClassMetaData [ ] getAccessPathMetaDatas ( StoreQuery q ) { } public int getOperation ( StoreQuery q ) { } public boolean isAggregate ( StoreQuery q ) { } public boolean isDistinct ( StoreQuery q ) { } public boolean hasGrouping ( StoreQuery q ) { } public OrderedMap < Object , Class < ? > > getOrderedParameterTypes ( StoreQuery q ) { } public LinkedMap getParameterTypes ( StoreQuery q ) { } public Object [ ] toParameterArray ( StoreQuery q , Map userParams ) { } public Map getUpdates ( StoreQuery q ) { } private static StoreQuery unwrap ( StoreQuery q ) { } } public static class CachedList extends AbstractList < Object > implements Serializable { private final QueryResult _res ; private final boolean _proj ; private final StoreContext _sctx ; public CachedList ( QueryResult res , boolean proj , StoreContext ctx ) { } public Object get ( int idx ) { } public int size ( ) { } public Object writeReplace ( ) throws ObjectStreamException { } } private class CachingResultObjectProvider implements TypesChangedListener , ResultObjectProvider { private final ResultObjectProvider _rop ; private final boolean _proj ; private final QueryKey _qk ; private final TreeMap < Integer , Object > _data = new TreeMap < Integer , Object > ( ) ; private boolean _maintainCache = true ; private int _pos = - 1 ; private int _max = - 1 ; private int _size = Integer . MAX_VALUE ; public CachingResultObjectProvider ( ResultObjectProvider rop , boolean proj , QueryKey key ) { } private void abortCaching ( ) { } private void checkFinished ( Object obj , boolean result ) { } public boolean supportsRandomAccess ( ) { }

Fix:
if ( ( ( cmd [ i ] . getDataCache ( ) ) != null ) && ( cmd [ i ] . getDataCache ( ) . getEvictOnBulkUpdate ( ) ) )